1123223232212 has 24 divisors (see below), whose sum is σ = 2081330513640. Its totient is φ = 528559400960.

The previous prime is 1123223232167. The next prime is 1123223232233. The reversal of 1123223232212 is 2122323223211.

It can be written as a sum of positive squares in 4 ways, for example, as 369875614276 + 753347617936 = 608174^2 + 867956^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2141114 + ... + 2613582.

It is an arithmetic number, because the mean of its divisors is an integer number (86722104735).

Almost surely, 2^{1123223232212} is an apocalyptic number.

It is an amenable number.

1123223232212 is a deficient number, since it is larger than the sum of its proper divisors (958107281428).

1123223232212 is a wasteful number, since it uses less digits than its factorization.

1123223232212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507451 (or 507449 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

Adding to 1123223232212 its reverse (2122323223211), we get a palindrome (3245546455423).

Subtracting 1123223232212 from its reverse (2122323223211), we obtain a palindrome (999099990999).

The spelling of 1123223232212 in words is "one trillion, one hundred twenty-three billion, two hundred twenty-three million, two hundred thirty-two thousand, two hundred twelve".